Water-gage



D. M. MCCOOK.

WATER GAGE.

APPLICATION FILED OCT. 20. |919.

Patented July 27, 1920.

2 SHEETS'SHEET l.

D. IVI. MCCOOK.

WATER GAGE.

APPLICATION FILED ocT. 20.1919.

Patented July 27, 1920.

2 SHEETS-SHEET 2.

A TTORNEYS DANIEL M. MCCOOK, OF MANCHESTER, GEORGIA.

WATER-GAGE.

To all whom 'it may concern:

Be it known that I, DANIEL M. MoCooK, a citizen of the United States, anda resident of Manchester, in the county of Meriwether and State of Georgia, have invented certain new and useful Improvements in. Water- Gages, of which the following is a specification. v v

My invention relates to water gages, and a purpose of my invention is the provision of a plurality of water gages arranged to give the same indications which can be observed from various angles so that when applied to the boiler of a locomotive, the quantity of water in the boiler can be readily determined by the engineer and fireman without moving from their respective workinv positions. l Y

It is also a purpose of my vinvention to provide manually controlled means for supplying steam and water to any one of the gages independently of the others, arid means for establishing communication between the gages independently of the steam and water supply to effect a supply from one gage to the other, so that should one of the pipes connected toany gage become .disrupted for any reason so as to discontinue the supply of water and steam thereto, the corresponding gage will not be rendered inoperative but can be readily reconnected so that it will again properly'function.

I will' describe one form and arrangement of gages embodying my invention, and will then point out the novel features thereof in claim.

` In the accompanying drawings Figure 1 is a view, showing in front elevation one form and arrangement of gages embodying my invention;

Fig. 2 is a vertical sectional view, taken on the line 2-2 of Fig. 1; and

Fig. 3 is a transverse sectional view, taken on the line 3--3 of Fig. 1.

Similar reference characters refer to similar parts in each of th several views.

Referring specifically to the drawings,

and-particularly to Fig. 1, G and G desig nate generally a pair of gages which are spaced apart in parallelism andare permanently connected at their ends by bridge pieces B and' B. Each gage G or Gr comprises,in the present instance, a body l15 having a beveled back, as shown in Fig. 3 and a front formed with flanges 16 which Specification of Letters Patent. Application led October 20, 1919. Serial No. 331,867.

Patented July 27,1920.

4provide a seat in which is disposed a glass plate 17. The plate 417 forms a closure for a\steain and water chamber 15a' formed in the body 15 at a point midway between the flanges 16, and to prevent leakage between the plate 17 and the walls of the chamber 15a, packing 18 fis interposed between the two, as shown in Fig. 3. For 'securing the plate 17 in tight engagement with the body 15, I provide a cover plate 19 preferably formed of brass which is secured to the lianges by means of screws i 20. A lip 19a formedon the inner edge of the cover plate 19 engages the outer side of the plate 17 and thus forces the latter snugly against the packing 18, as will beuiiderstood. Graduations are provided on the cover plate for facilitating one in the reading of the gage.

As shown in Fig. 3, the gages G and G are disposed in divergent relation 'to each other so that the face of one or theother vcan be easily seen from either side. .Thiskk is highly desirable when using the gagesj The gages G and G are adapted to bel 85 connected to the same boiler to give a double indication by an arrangement of pipes which supply water to the bottom and steam to the top of the gages for effecting an equalization of pressure .in the 4chambers 15a in the usual manner.

As shown in Fig. 1, W and W designate a pair of pipes for supplying water to the gages G and G', respectively, from a pipe N2 which is connected to a boiler (not shown) and to the pipes W and W by a branch pipe W3. Drain pipes W4 are connected to the pipes W and W at points below the branch pipe Ws for effecting a drainage of the gages when it is desired. The passage of water to the gages is controlled by manually operated valves V and V', respectively, located within the pipes W and VV; and the eXit of water from-the pipes W4 is controlled by similar valves V2.

Steam from the boiler is supplied to the gages G and G through pipes S and S from a common pipe S2 which connects di.-l rectly to the boiler and to the pipes S andv S through a branch pipe S3. Valves V3 and 110 V4 control-thcI passage of steam through the pipes S and S respectively, as will be understood.

As shown in Figs. 2 and 3, each bridge piece B or B comprises a block of metal which is formed With a longitudinally extending duct 21 or 21 that communicates at its ends with the chambers l5 of the gages (i and G. These ducts 21 and 2l are controlled by cocks K and K respectively, mounted within the bridge pieces at points intermediate the ends of the ducts.

By virtue of this arrangement, it will be clear that communication is or is not established between the chambers 21 and 2la at their opposite ends according as the cocks K and K are opened or closed. Vhen the cock K is open, Water from chamber 15 is free to pass to chamber 15a and vice versa, but when it is closed, water from one chamber cannot pass to the other. The same action is true of the steam in connection with the cock K', thus it will be seen that the passage of steam and Water from one gage to the other is controlled solely by the cocks K and K.

From the foregoing arrangement, it will be understood that when both gages G and G are functioning, valves V, V, V3 and V4 are open while Valves V2 are closed. However, When one of the pipes IV, IV or S, S is disrupted, which very often occurs as a result of corrosion, the corresponding Valve is closed 'so that Water or steam is no longer supplied to the gage. The open end of the broken pipe which remains connected to the gage is of course plunged in the usual manner t0 prevent the escape of steam or Water from the gage.

In gages for locomotive boilers it is highly desirable and almost compulsory to maintain both gages in operation at all times, so that should one of the gages be rendered inoperative by the disruption of either the steam or Water pipe, it can be almost instantly thrown into operation, as it Were by opening one or the other of the cocks K or K depending upon Whether it is the steam or Water pipe that is defective. F or example, should the Water pipe W break so as to render the gage G inoperative, such pipe is capped in any Wellknown manner whereupon the cock K is opened, thus admitting water to the chamber l5 from the chamber 15a of the gage Gr.

Although I have herein shown and described only one form of gage, one form of bridge piece, and one arrangement of steam and water pipes, it is to be understood that various changes and modifications may be made herein Without departing from the spirit of the invention or the spirit and scope of the appended claim.

Having thus described my invention, I claim:

In combination, a pair of gages, each comprising a body having a chamber formed therein and a transparent plate closing said chamber, pipes connected to said chambers for supplying steam and Water thereto, valves in said pipes for controlling the supply of steam and Water to one of the chambers independently of the other, and bridge pieces connecting said gages having ducts formed therein for effecting communication between said chambers at the opposite ends thereof, and cocks in said bridge pieces for controlling said ducts.

DANIEL M. MCCOOK. 

